Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 539 (WIRING SYSTEMS - CONNECTOR END VIEWS)CONNECTOR END VIEWSINLINE HARNESS CONNECTOR END VIEWSC101
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
Inline Harness Connector End Views: C101
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION C101
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
C101 Connector End View
| Connector Part Information |
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Connector Part Information |
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|---|---|---|---|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function | Pin | Wire Color | Circuit No. | Function |
| A | WHT | 17 | Stop Lamp Switch Signal | A | WHT | 17 | Stop Lamp Switch Signal |
| B | YEL | 2470 | Class 2 Serial Data (LY7) | B | YEL | 2470 | Class 2 Serial Data (LY7) |
| C | PNK | 39 | Ignition 1 Voltage (LY7) | C | PNK | 39 | Ignition 1 Voltage (LY7) |
| D | BRN | 882 | Right Rear Wheel Speed Sensor Signal | D | BRN | 882 | Right Rear Wheel Speed Sensor Signal |
| E | WHT | 883 | Right Rear Wheel Speed Sensor Low Reference | E | WHT | 883 | Right Rear Wheel Speed Sensor Low Reference |
| F | LT BLU | 1122 | ABS/TCS Class 2 Serial Data | F | LT BLU | 1122 | ABS/TCS Class 2 Serial Data |
| G | BRN | 1271 | Low Reference (LY7) | G | BRN | 1271 | Low Reference (LY7) |
| H | WHT/BLK | 1164 | 5-Volt Reference (LY7) | H | WHT/BLK | 1164 | 5-Volt Reference (LY7) |
| J | DK BLU | 1161 | APP Sensor 1 Signal | J | DK BLU | 1161 | APP Sensor 1 Signal |
| K | BLK | 884 | Left Rear Wheel Speed Sensor Signal | K | BLK | 884 | Left Rear Wheel Speed Sensor Signal |
| L | RED | 885 | Left Rear Wheel Speed Sensor Low Reference | L | RED | 885 | Left Rear Wheel Speed Sensor Low Reference |
| M | TAN | 1274 | 5-Volt Reference (LY7) | M | TAN | 1274 | 5-Volt Reference (LY7) |
| N | PPL | 1272 | Low Reference (LY7) | N | PPL | 1272 | Low Reference (LY7) |
| P | LT BLU | 1162 | APP Sensor 2 Signal (LY7) | P | LT BLU | 1162 | APP Sensor 2 Signal (LY7) |
| R | TAN/WHT | 2500 | High Speed GMLAN Serial Data Bus+ (LY7) | R | TAN/WHT | 2500 | High Speed GMLAN Serial Data Bus+ (LY7) |
| S | TAN | 2501 | High Speed GMLAN Serial Data Bus- (LY7) | S | TAN | 2501 | High Speed GMLAN Serial Data Bus- (LY7) |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.